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HK: Hadronen und Kerne

HK 59: Postersitzung

HK 59.12: Poster

Thursday, March 27, 1997, 14:00–16:30, P

Medium dependent transport in spin-polarized nuclear matter — •K. Morawetz¹ and L. Mornas² — ¹AG Quantentheorie und Vielteilchensysteme, FB Physik Universität Rostock, Universitätsplatz 3, D-18051 Rostock — ²DARC, Observatoire de Paris - Meudon, 5 pl. J. Janssen, F-92195 Meudon France

The transport coefficients of spin polarized nuclear matter are calculated from an extended relaxation time approximation. The relaxation times are estimated using the realistic Bonn potential. When the polarization is non zero, new coefficients appear which describe spin diffusion, and the coupling between heat and spin currents. Moreover, the usual transport coefficients are enhanced with respect to their unpolarized value. The medium dependence is discussed and the importance for cooling mechanisms of spin polarized beams is shown.

[1] L. Mornas and K. Morawetz, Phys. Lett. B. sub.